CLEAPSS Supporting practical science and technology
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Instructions on how to make a small water bath for holding vials.
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Updated from section 14 of the CLEAPSS Handbook, this explains the various ways of achieving a temperature-controlled environment. it also list the organisms and activities for which good temperature .. more
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Bumper 12 page edition; directors update, CLEAPSS 12 Day technician training programme, Salters Technician Awards 2016, Demo day, use of sharps, dodgy websites, Unilab power supplies, who to call in a.. more
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A quick and safe method for preparing hydrated copper sulfate crystals from copper(II) oxide and sulfuric acid. The activity involves important techniques such as heating with a water bath, filtration.. more
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Explains the regulations covering water supply to labs and the sort of tap fittings or supply arrnagements needed to comply.
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Small scale 'disappearing cross' methods for investigating the effect of concentration on the rate of the sodium thiosulfate - acid reaction. Includes use of an alkaline 'stop-bath' to neutralise used.. more
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Guidance on the preparation and use of the required solutions for the determination of the dissolved oxygen content of water samples using Winkler's method. The procedure described avoids the use of s.. more
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This edition includes notes on an upcoming total eclipse, sodium and potassium shooting out of the water trough during demonstrations, and problems with Bunsen tubing.
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Guidance and information on a range of chemicals, chemistry topics and apparatus including handling chemicals, chemical reactions, gas cylinders and syringes, molecular models, plastics, advanced chem.. more
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With careful supervision, students can carry a simple distillation to separate a pure substance (water) from a solution (copper(II) sulfate). This can be achieved by using a side-arm boiling tube inst.. more
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Showing results 1 to 10 of 775
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